Contains information about certain highways culled from cross-country trips. Includes maps.

Guide to the first federally-funded road in the U.S. (1800s) and the route which followed it later (US 40).

Traffic reports for cities and other travel information.

A designated scenic highway going through Georgia, Tennessee, North Carolina and South Carolina. Official tourism site.

Various scenes from along the southern tier of the country.

Weblog of a 2006 trip documenting U.S. 6 in comments and photographs.

American Association of State Highway and Transportation Officials page commemorating the 50th anniversary of the Interstate System in 2006. Includes history and photographs.

Nonprofit organization promoting policies which are designed to improve traffic conditions.

Gives an overview of the system and provides a listing of all one- and two-digit routes.

List of Average Daily Traffic (ADT) tallies for major metropolitan areas.